Laser fundamentals and applications
Laser fundamentals and applications. A Laser is a device that emits light within a process of optical amplification based on the stimulated emission of electromagnetic radiation. Because of its extremely high degree of monochromaticity, coherence, directionality, polarization, and power, etc.,
laser radiation or light has been widely used in high-resolution spectroscopy and imaging, chemistry, optical communications, biomedicine, defense industries, etc.
This course is intended for students who need to understand the basic principles of how lasers work and their main properties. This course provides the scholars a thoroughgoing knowledge of the fundamentals of lasers: their unique properties, their operations, and their applications.
It will equip the students with information on how a coherent light is generated and amplified, the techniques after different lasers design, and applications of laser in spectroscopy, chemistry, medicine, biology, military, and other areas.
Laser fundamentals and applications INTENDED AUDIENCE: Senior UG and PG students
What Will I Learn?
- Week 1: Introduction; Importance: why laser?, unique properties of lasers; Brief history of laser development ; Laser basics
- Week 2: Concept of stimulated emission; Einstein’s coefficients; Population inversion; Amplification of stimulated emission; Laser instrumentation fundamentals: Cavity, resonator and pumping processes; Gain medium
- Week 3: Coherent radiation, standing waves and modes; The kinetics of laser emission; Rate equations; Threshold conditions; Pulsed and continuous wave laser emission; Various pulsing techniques: cavity dumping, Q-switching and mode-locking
- Week 4: Transitions, lifetimes and linewidths: Three level laser, Four-level laser, emission linewidth; Properties of laser light: monochromaticity, spatial and temporal coherence, intensity, beam-width Similarity transforms,
- Week 5: Laser sources; different types of lasers; Laser instrumentation details
- Week 6: Applications of lasers in spectroscopy, chemistry, biology, medical sciences and other fields
- Week 7: Applications of lasers in spectroscopy, chemistry, biology, medical sciences and other fields
- Week 8: Applications of lasers in spectroscopy, chemistry, biology, medical sciences and other fields Summary of the course